Steering load simulation device

Abstract

The utility model belongs to the technical field of steering load simulation, and particularly relates to a steering load simulation device which comprises a connecting plate, a telescopic simulation assembly, a connecting rod and a connecting piece, the connecting plate is fixed with a chassis through screws, the telescopic simulation assembly is rotatably connected with the surface of the connecting plate, the telescopic end of the telescopic simulation assembly is connected with the connecting rod, and the connecting piece is connected with the connecting rod. The connecting rod is connected with the steering pull rod and the telescopic end of the telescopic simulation assembly through a connecting piece. In actual use, the connecting plate is fixed with a chassis through screws, the connecting plate is provided with a plurality of rows of screw holes and is suitable for connection of various chassis, and the bottom plate is connected with the cylinder body through a turntable bearing. The telescopic simulation assembly is connected with the steering mechanism through the connecting rod, when the steering mechanism moves, the telescopic simulation assembly is driven to move, through telescopic movement of the telescopic simulation assembly, load simulation and direct connection of an automobile chassis, steering movement is visually simulated, and the device can be used in various environments.

Description

Technical Field

[0001] The utility model relates to the technical field of steering load simulation, in particular to a steering load simulation device. Background Art

[0002] In order to improve the development speed of the automobile steering mechanism and enable the automobile steering mechanism to be tested quickly and in large quantities, three steering load simulations are designed to allow this mechanism to simulate various possible steering load road conditions, so that the automobile steering mechanism can collect relevant data in the laboratory. The mechanism is simple and easy to install. It does not need to remove the automobile steering rod. The mechanism can be fixed to the automobile chassis. It is connected to the automobile steering rod through a connecting rod. Through servo control, the steering load road conditions are simulated in real time to ensure the accuracy and effectiveness of the transmitted data.

[0003] At present, there are generally only longitudinal performance test benches for vehicle performance testing on the market, and vehicle lateral performance is generally mainly tested through actual vehicle testing in the test field.

[0004] For example, the Chinese patent application number CN201710252539.X involves the technical field of automobile testing equipment, and solves the technical problem of testing unmanned vehicles. The system includes a base platform, a side shift platform installed on the base platform, and a rotating platform installed on the side shift platform; the front of the rotating platform is provided with two front wheel brackets that can slide left and right and a front wheelbase adjustment mechanism; the rear of the rotating platform is provided with two rear wheel brackets that can slide forward and backward and a wheelbase adjustment mechanism; each front wheel bracket is provided with a front wheel drum that can rotate horizontally, each front wheel drum bracket is provided with a front wheel drum, and a front wheel load motor for driving the front wheel drum to rotate; each rear wheel bracket is provided with a rear wheel drum, and a rear wheel load motor for driving the rear wheel drum to rotate.

[0005] The load simulation for the steering system is not direct enough and requires the vehicle to be driven into the detection area. Utility Model Content

[0006] The utility model aims to provide a steering load simulation device to solve the problem that the load simulation of the steering system proposed in the above background technology is not direct enough and the vehicle needs to be driven to a detection area.

[0007] To achieve the above object, the utility model provides the following technical solution: a steering load simulation device, comprising:

[0008] Connecting plates, telescopic simulation components, connecting rods, and connectors;

[0009] Wherein, the connecting plate is fixed to the vehicle chassis by screws;

[0010] The telescopic simulation component is rotationally connected to the surface of the connecting plate;

[0011] The telescopic end of the telescopic simulation component is connected with a connecting rod, and the connecting rod is connected with the steering rod and the telescopic end of the telescopic simulation component through a connecting piece.

[0012] Preferably, a plurality of rows of screw holes are provided on the surface of the connecting plate.

[0013] Preferably, the connecting rod is configured to be in an "S" shape.

[0014] Preferably, one end of the connecting rod close to the steering rod is connected to a universal ball head, and the other side of the universal ball head is connected to a corresponding connecting piece through a ball seat, and the connecting piece can rotate relative to the connecting rod through the universal ball head and the ball seat.

[0015] Preferably, the telescopic simulation component includes a hollow cylinder body with an opening on the left side, a push rod is movably inserted in the left opening of the cylinder body, a rack is provided on the upper surface of the push rod, a through groove is provided on the left side of the upper surface of the cylinder body, a right-angle reducer is installed on the rear side wall of the cylinder body, a cylindrical gear is connected to the output shaft of the right-angle reducer, the cylindrical gear is located in the through groove, and the cylindrical gear passes through the through groove and meshes with the rack, the input shaft of the right-angle reducer is connected to the output end of the servo motor, and the cylinder body is rotationally connected to the upper surface of the connecting plate.

[0016] Preferably, a turntable bearing is installed on the lower surface of the cylinder body, the lower surface of the turntable bearing is connected to the connecting plate, and the cylinder body is rotatably connected to the connecting plate through the turntable bearing.

[0017] Preferably, a piston is slidably connected inside the cylinder body, and the left end of the push rod is fixedly connected to the piston.

[0018] Preferably, the telescopic simulation component is an electric cylinder.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] In actual use, the connecting plate is fixed to the vehicle chassis by screws. The connecting plate has multiple rows of screw holes and is suitable for connection with a variety of chassis.

[0021] The telescopic simulation component is connected to the steering mechanism through a connecting rod. When the steering mechanism moves, the telescopic simulation component is driven to move. The load is simulated through the telescopic movement of the telescopic simulation component.

[0022] The connecting rod is S-shaped to ensure that the telescopic simulation component does not interfere with other chassis mechanisms during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a schematic diagram of the structure of the first telescopic simulation component used in the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the utility model when the first electric cylinder is used;

[0025] Figure 3 This is a schematic diagram of the structure when the utility model adopts the second electric cylinder;

[0026] Figure 4 This is a schematic diagram of the structure of the connecting plate of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the connecting rod of the utility model;

[0028] Figure 6 It is a schematic diagram of the structure of the utility model when the connecting rod is connected with the connecting piece and the universal ball head;

[0029] Figure 7 This is a structural schematic diagram of the first telescopic simulation component of the utility model installed on the connecting plate;

[0030] Figure 8 For this utility model Figure 7 Bottom view of

[0031] Fig. 9 This is a schematic diagram of the structure of the first electric cylinder of the utility model installed on the connecting plate;

[0032] Fig.10 This is a schematic structural diagram of the second electric cylinder of the utility model installed on a connecting plate.

[0033] In the figure: 1. connecting plate; 2. telescopic simulation component; 21. cylinder body; 22. push rod; 23. right-angle reducer; 24. cylindrical gear; 25. servo motor; 26. turntable bearing; 27. electric cylinder; 3. connecting rod; 4. connecting piece; 5. universal ball head. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0036] Embodiment 1:

[0037] See also Figure 1-10 , the utility model provides a technical solution: a steering load simulation device, comprising: a connecting plate 1, a telescopic simulation component 2, a connecting rod 3, and a connecting piece 4;

[0038] Among them, the connecting plate 1 is fixed to the vehicle chassis by screws; the telescopic simulation component 2 is rotationally connected to the surface of the connecting plate 1; the telescopic end of the telescopic simulation component 2 is connected to a connecting rod 3, and the connecting rod 3 is connected to the steering rod and the telescopic end of the telescopic simulation component 2 through a connecting member 4.

[0039] Analysis of the above content: The connecting plate 1 is made of stainless steel, and the connecting plate 1 is fastened to the chassis of the vehicle. After the position of the connecting plate 1 is adjusted, the two ends of the connecting rod 3 are connected to the steering rod and the telescopic end of the telescopic simulation component 2 through the connecting piece 4. When the steering mechanism moves, the telescopic simulation component is driven to move, and the load is simulated through the telescopic movement of the telescopic simulation component. The external setting measurement system can detect the telescopic condition of the telescopic simulation component 2 to measure the load condition.

[0040] Embodiment 2:

[0041] See also Figure 1-10 The utility model provides a technical solution based on the first embodiment: a plurality of rows of screw holes are arranged on the surface of the connecting plate 1.

[0042] Analysis of the above content: Through the arrangement of multiple rows of screw holes, the screw holes can be set to meet the connection positioning of different vehicle chassis and are suitable for a variety of chassis connections.

[0043] Embodiment three:

[0044] See also Figure 1-10 The utility model provides a technical solution based on the first embodiment: the connecting rod 3 is set to be "S" shaped.

[0045] Analysis of the above content: The "S"-shaped connecting rod 3 forms an avoidance structure to ensure that the telescopic simulation component 2 does not interfere with other chassis mechanisms during movement.

[0046] Embodiment 4:

[0047] See also Figure 1-10 The utility model provides a technical solution based on the first embodiment: the connecting rod 3 is connected to a universal ball head 5 at one end close to the steering rod, and the other side of the universal ball head 5 is connected to the corresponding connecting piece 4 through a ball seat, and the connecting piece 4 can rotate relative to the connecting rod 3 through the universal ball head 5 and the ball seat.

[0048] Analysis of the above content: the universal ball head 5 can rotate around the ball seat in the ball seat, the universal ball head 5 and the ball seat are respectively connected between the steering rod and one end of the connecting rod 3. When the steering rod moves, the steering rod pulls the connecting rod 3 through the cooperation of the universal ball head 5 and the ball seat, and the connecting rod 3 drives the telescopic end of the telescopic simulation component 2 through the connecting piece 4 at the other end.

[0049] Embodiment five:

[0050] See also Figure 1-10 The utility model provides a technical solution based on the first embodiment: the telescopic simulation component 2 includes a hollow cylinder body 21 with an opening on the left side, a push rod 22 is movably inserted at the opening on the left side of the cylinder body 21, a rack is arranged on the upper surface of the push rod 22, a through groove is arranged on the left side of the upper surface of the cylinder body 21, a right-angle reducer 23 is installed on the rear side wall of the cylinder body 21, a cylindrical gear 24 is connected to the output shaft of the right-angle reducer 23, the cylindrical gear 24 is located at the through groove, and the cylindrical gear 24 passes through the through groove and meshes with the rack, the input shaft of the right-angle reducer 23 is connected to the output end of the servo motor 25, and the cylinder body 21 is rotationally connected to the upper surface of the connecting plate 1.

[0051] Analysis of the above content: the telescopic simulation component 2 here is of the first structural form, which is composed of a cylinder body 21, a push rod 22, a right-angle reducer 23, a cylindrical gear 24, a servo motor 25 and other structures. When the steering mechanism moves, the steering mechanism drives the push rod 22 to move through the connecting rod 3, the connecting part 4 and other structures. The push rod 22 telescopes and moves, and the rack on it also moves accordingly. The rack drives the cylindrical gear 24 to move, thereby transmitting the force to the right-angle reducer 23 and the servo motor 25, and the load simulation is given by controlling the servo motor 25.

[0052] Embodiment six:

[0053] See also Figure 1-10 The utility model provides a technical solution based on the fifth embodiment: a turntable bearing 26 is installed on the lower surface of the cylinder body 21, and the lower surface of the turntable bearing 26 is connected to the connecting plate 1. The cylinder body 21 is rotatably connected to the connecting plate 1 through the turntable bearing 26.

[0054] Analyzing the above contents: one end of the turntable bearing 26 is connected and fixed to the connecting plate 1 , and the other end of the turntable bearing 26 is connected and fixed to the lower surface of the cylinder body 21 , so that the cylinder body 21 can rotate relative to the connecting plate 1 .

[0055] Embodiment seven:

[0056] See also Figure 1-10 The utility model provides a technical solution based on the fifth embodiment: a piston is slidably connected inside the cylinder body 21, and the left end of the push rod 22 is fixedly connected to the piston.

[0057] Analysis of the above content: The piston is movably connected inside the cylinder body 21, and the movement of the push rod 22 can drive the movement of the piston. With the assistance of the piston, the push rod 22 moves smoothly.

[0058] Embodiment eight:

[0059] See also Figure 1-10 The utility model provides a technical solution based on the fifth embodiment: the telescopic simulation component 2 is an electric cylinder 27.

[0060] Analysis of the above content: The electric cylinder 27 is the second structural form of the telescopic simulation component 2. The electric cylinder 27 adopts two structural forms, such as Fig. 9 , 10 There are two types of electric cylinders 27 respectively. Fig. 9 The electric cylinder 27 is servo-controlled and has a ball screw structure. It is reversible. When the steering rod moves, it can drive the screw to move. When the screw moves in an extension and retraction motion, it will drive the nut to rotate, thereby transmitting force to the servo motor of the electric cylinder 27. The load simulation is given by controlling the servo motor. Fig.10 The electric cylinder 27 adopts a 25mm large lead ball screw structure. Compared with common electric cylinders, under the condition of the same stroke, the push rod is shorter, the overall volume is smaller, and the response is faster. It can respond quickly to the movement of the steering rod and can simulate the load more realistically to the car steering rod.

[0061] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0062] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steering load simulation device, characterized in that: include: A connecting plate (1), a telescopic simulation component (2), a connecting rod (3), and a connecting piece (4); Wherein, the connecting plate (1) is fixed to the vehicle chassis by screws; The telescopic simulation component (2) is rotationally connected to the surface of the connecting plate (1); The telescopic end of the telescopic simulation component (2) is connected to a connecting rod (3), and the connecting rod (3) is connected to the steering rod and the telescopic end of the telescopic simulation component (2) through a connecting piece (4).

2. A steering load simulation device according to claim 1, characterized in that: The surface of the connecting plate (1) is provided with multiple rows of screw holes.

3. A steering load simulation device according to claim 1, characterized in that: The connecting rod (3) is arranged in an "S" shape.

4. A steering load simulation device according to claim 1, characterized in that: One end of the connecting rod (3) close to the steering rod is connected to a universal ball head (5), and the other side of the universal ball head (5) is connected to a corresponding connecting piece (4) via a ball seat. The connecting piece (4) can rotate relative to the connecting rod (3) via the universal ball head (5) and the ball seat.

5. A steering load simulation device according to claim 1, characterized in that: The telescopic simulation component (2) comprises a hollow cylinder body (21) with an opening on the left side, a push rod (22) movably inserted into the opening on the left side of the cylinder body (21), a rack being arranged on the upper surface of the push rod (22), a through groove being arranged on the left side of the upper surface of the cylinder body (21), a right-angle reducer (23) being installed on the rear side wall of the cylinder body (21), a cylindrical gear (24) being connected to the output shaft of the right-angle reducer (23), the cylindrical gear (24) being located at the through groove, and the cylindrical gear (24) passing through the through groove and meshing with the rack, the input shaft of the right-angle reducer (23) being connected to the output end of the servo motor (25), and the cylinder body (21) being rotationally connected to the upper surface of the connecting plate (1).

6. A steering load simulation device according to claim 5, characterized in that: A turntable bearing (26) is installed on the lower surface of the cylinder body (21), and the lower surface of the turntable bearing (26) is connected to the connecting plate (1). The cylinder body (21) is rotatably connected to the connecting plate (1) via the turntable bearing (26).

7. A steering load simulation device according to claim 5, characterized in that: A piston is slidably connected inside the cylinder body (21), and the left end of the push rod (22) is fixedly connected to the piston.

8. A steering load simulation device according to claim 1, characterized in that: The telescopic simulation component (2) is an electric cylinder (27).

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